The ever increasing demand for complex and miniaturized electronic systems, such as mobile electronic devices and medical implantable devices, has led to an increasing demand for robust and efficient DC-DC converters, which are used to change the power supply levels to the levels required by each of the system blocks. Our group is investigating efficient design techniques for on-chip DC-DC robust converters. We are currently working on improving the voltage regulation capability, which is important to provide a steady fluctuation-less output voltage, thus enhancing the robustness of the DC-DC converter. Our research considers the various aspects that govern the control mechanism and design a comprehensive control model for the DC-DC converter, which can improve its voltage regulation efficiency and thereby enhance its robustness. We perform our experiments on two different types of DC-DC converters, namely, buck converter and boost converter. While a buck converter is used to step-down (or reduce) the initial supply voltage, the boost converter is used to step-up (or increase) the initial supply voltage.


Fig. : Buck Converter (voltage step-down) Fig. : Boost Converter (voltage step-up)